010 1 3-4 Deign and Imlementation of an Engine Igniter for Hybrid Electric Vehicle * Chih-Lung Shen Yu-En Wu Fu-Yuan Chuang De-Ming Rho Cheng-Tao Tai Deartment of Electronic Engineering, National Kaohiung Firt Univerity of Science and Technology Kaohiung, Taiwan, R.O.C. Tel +886-7-6011000 ext.515 Fax +886-7-6011386 E-mail clhen@nkfut.edu.tw : Abtract In thi aer an engine electric ignition ytem for hybrid electric vehicle i reented. The ytem comrie a flyback converter, a voltage-accumulated caacitor, a PIC-baed controller, a differential voltage detection circuit, and a high-voltage imule tranformer to contruct non-contact tye electric igniter. Since the electric ignition ytem adot a voltage-accumulated caacitor dicharging energy to erform igniting for engine intead of traditional contact-tye aroach, it enhance the ignition ability of ark lug ignificantly. A a reult, combution efficiency i romoted, fuel conumtion i aved, and exhaut emiion i reduced. The ignition ytem i good for fuel efficiency and CO reduction, leading to be an environmentally friendly roduct. The ytem controller of the igniter i imlemented on a ingle chi, which lower dicrete comonent count, reduce ytem volume, and increae reliability. In addition, the ignition timing can be rogrammed o that a timing regulator can be removed from the rooed ytem, imlifying it tructure. To verify the feaibility of the ytem, key waveform are meaured and real-car exeriment i erformed a well. Keyword: engine ignition ytem, flyback converter, combution efficiency, and oil conumtion. I. * Deartment of Electrical Engineering National Chin-Yi Univerity of Technology Taichung, Taiwan, R.O.C. Tel: +886-4-394505 ext.740 E-mail cttai@ncut.edu.tw [1]-[16] [17]-[0] : II. 1 SCR 0kV (CDI) [1]-[11] 1 93 1
010 1 3-4 3 3 10 10 10 10 4 4 PIC18F450 Microchi 8bit18F450 / (I/O) (PWM) / (A/D) (Reet) (Interrut) / (Timer) 1 PIC18F450 1 PIC18F450 40MHZ 4 3768 (byte) CCP 1 1536 (byte) CCP 1 EEPROM 56 (byte) MSSP 0 PSP Port:A,B,C,D,E AD 13 Channel III. 5 CCM() DCM( ) DCM[1] 3 5 933
010 1 3-4 SW SCR 7 1 6(a) L m C R 6(b) C SW ON L m 3 L m D 1 D C di C di D C 6(c) 4 L m C di 6(d) 5 C di 00V C di SCR 6(e) 6 SCR C di 6(f) 7 6(g) (d) (e) (f) (g) (a) (b) (c) 3 934 6 (a) 1 (b) (c) 3 (d) 4 (e) 5 (f) 6 (g) 7 N n N T DDCM n Vo LB 1 D T (1) Io V o I o L B DCM L L B L L B CCM DCM 1 V I () L V
010 1 3-4 1 V P VI (3) L 14 L 1 V (4) P D(1) DCM L L <L B ηp o P = P o /η (4) 3 (50V/div; 5m/div) 7 : 48V 50 khz 00 V 5 W (5kV/div; m/div) 8 85% 0 kv 3 : 9 N 1 N (L 11 ) (L ) 57N 7N 1 100 401.3uH 9.1mH 0.468 48 C di 00 SCR 7 8 9 10 5m 00V 11 1 13 4 935 (50V/div; 0m/div) 10 (50V/div; 0µ/div) 11
010 1 3-4 (5kV/div; 50m/div) 1 (5kV/div; 500µ/div) 13 14 V. [5] ( ) 1991 [6] () 1991 [7] () 1985 [8] -- 1984 [9] () 1984 [10] () 007 [11] () 007 [1] PIC PIC16F877 005 [13] PIC 009 [14] 006 [15] 006 [16] 1980 [17] Yohino H, Sato, K, Tomago A, and Yamauchi I, Develoment of a Corona Dicharge Detector for Flyback Tranformer, IEEE Tranaction on Conumer Electronic, Feb. 1977, Vol. CE-3 Iue 1,. 114-119. [18] Foret F, Laboure E, Meynard T.A and Hueltein J-J, Multicell Interleaved Flyback Uing Intercell Tranformer, IEEE Tranaction on Power Electronic, Set. 007, Vol. Iue 5,. 166-1671. [19] W. Langelag, R. Pagano, K. Schetter, A. Strijker and A. van Zoet, VLSI Deign and Alication of a High-Voltage-Comatible SoC ASIC in Biolar CMOS/DMOS Technology for AC DC Rectifier, IEEE Tranaction on Indutrial Electronic, Oct. 007, Vol. 54, Iue 5,. 66-641. [0] P. Paanikolaou and E.C. Tataki, Minimization of Power Loe in PFC Flyback Converter Oerating in the Continuou Conduction Mode, N. IEE Proceeding - Electric Power Alication, July 00, Vol. 149,. 184-195. [1] 005 [1] 1991 [] 005 [3] 1994 [4] ( 1 ) 199 5 936